*** Creating database: EFDemo2 ***
10.10.100.6 OK [vertica][(6, 1, 3)][000][x86_64]
10.10.100.5 OK [vertica][(6, 1, 3)][000][x86_64]
10.10.100.4 OK [vertica][(6, 1, 3)][000][x86_64]
Checking full connectivity
Creating database EFDemo2
Spread does not seem to be running on 10.10.100.6. The database will not be started on this host.
Spread does not seem to be running on 10.10.100.4. The database will not be started on this host.
Spread does not seem to be running on 10.10.100.5. The database will not be started on this host.

The following host(s) are not available: 10.10.100.6 , 10.10.100.4 , 10.10.100.5.
You should get them running first. Operation can not be completed.

So I went and restarted spread on all nodes:
[root@vertica2 ~]# /etc/init.d/spreadd restart
Stopping spread daemon: [ OK ]